Marcin LIS
Head of Laboratory, ZAE ERGOM
Daniel MIROWSKI
Head of Product Development Department, ZAE ERGOM
Michał UCIŃSKI
Product Engineer, ZAE ERGOM

Flat-oval long connectors with a spacer for overhead line conductors, AFL type ZLAFD – guaranteed connection quality.

Overhead power lines are often damaged (broken off) due to adverse weather conditions such as storms or strong winds. These failures result in power outages that negatively impact:

1. Daily life, depriving us of access to heat, sometimes water, light, and the ability to use electrical appliances.
2. The economy, as a result of which work in factories and other enterprises is suspended.
3. The quality of the power grid – sudden, widespread, and prolonged failures of transmission lines destabilize the electricity grid, which negatively affects power parameters for consumers and may lead to additional failures.

Therefore, repairing such power lines should be carried out professionally and as quickly as possible. To achieve this, reliable and certified products should be used (compliant with PN-EN 61284:2002). Such high standards are met by the aluminum mechanically loadable connectors, ZLAFD type.

ZLAFD connectors are used for:

• Connecting aluminum-steel conductors of the AFL-6 type with cross-sections ranging from 25mm² to 70mm².
• Closing loops on insulators or tension clamps.

The dimensions of ZLAFD connectors have been designed based on the BN-86/0325-29 standard. The ends are shaped to facilitate easy wire insertion.

The body of the ZLAFD connectors is marked to simplify installation:

• AFL conductor type and its cross-section
• Crimping die type
• Crimping points
• Manufacturer's name and connector type.

Fig. 1 ZLAFD connector with spacer

Fig. 2 ZLAFD 25 connector crimped on AFL-6 25 conductors

Fig. 3 ZLAFD 35 connector crimped on AFL-6 35 conductors

At the beginning of 2024, our ZLAFD connectors passed tests for compliance with the PN-EN 61284:2002 standard conducted by the Quality Research Office (BBJ) and obtained a certificate of compliance with PN-EN 61284:2002:

• Class A, mechanically loadable connector
• Short-circuit test for Class A connections in accordance with section 13.5.3.1

Fig. 4 Certificate of conformity for ZLAFD connectors in the cross-section range of 25 - 70.

Zakład Aparatury Elektrycznej ERGOM Sp. z o.o., an engineering company with over 35 years of experience in the market, provides customers not only with individual products designed and tailored to their needs but also complete solutions. We continually expand our range with new products that meet the requirements of current standards and regulations.